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(-Mod'el. '2 Sheets-Sheet 1. J E PLATT & J PIDLER A C. L. STURTEVANT, Administrator of J; FI'DLER, Deceased. APPARATUS FOR GRINDING EEIEgOLVING FLATS 0P CARDING nted Dec. 12,1893.

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I 2 Sh eetsSheet J. E. PLA-TT & J. FIDLER. I G. L. STURTEVANT, Admmistrator of J FIDLER, Deceasei APPARATUS FOR GRINDING THBVRBVOLVING FLATS 0F GARDING ,(Model.

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UN TED STATES PATENT OFF CE.

JAMES EDWARD PLATT AND JAMES FIDLER, OF OLDHAM, ENGLAND;

OHARLES L. STURTEVANT, ADMINISTRATOR OF SAID FIDLER, DE- OEASED, AND JAMES EDWARD PLATT ASSIGNORS-TO THE PLATT BROTHERS & COMPANY, LIMITED, OF SAME PLACE.

APPARATUS FOR GRINDING THE REVOLVING FLATS 0F CARDING -ENGINES.

SPECIFICATION forming part of Letters Patent No. 510,611, dated December 12, 1893. Application filed January 2, 1891 Serial No. 376.493. (ModeL) Patented in England August 15,1889, No.12,886.

To all whom it may concern:

Be it known that we, JAMES EDWARD PLATT, engineer, and JAMES FIDLER, machinist, of Hartford Works, Oldham, in the county of Lancaster, England, have invented certain new and useful Improvements in Apparatus for Grinding the Revolving Flats Employed in Oarding-Engines, (for which we have obtained Letters Patent of the United Kingdom of Great Britain and Ireland, No. 12,886, dated August 15, 1889,) of which the following is a specification.

Our improvements relate to arrangements of apparatus for grinding the flats of revolving flat carding engines for which British Letters Patent were granted to Thomas Olegg and Thomas Lucas, dated the 19th day of February, 1874, No. 623.

In carrying out our invention we employ a cam or cams secured to or receiving rotary motion from the notch block shaft from which the flats receive their motion and by which they are moved over the surface of the guide rails or flexible bends of revolving flat carding engines. The said cam or cams actuates' or actuate a lever or levers which acts or act upon sliding pieces which carry or press the flats one after another against the faces of the sliding blocks (is) described in the specification of the Letters Patent aforesaid. The said cam or cams will at the proper time by means of the lever or le-.

vers and sliding pieces aforesaid cause the flat which is to be ground to be brought into contact with the said sliding blocks (k) so that the relative positions of the wire on the flat and the surface of the grinding roller will be regulated by the sliding blocks (is) while the wire of the flat is being ground.

The cam or cams before mentioned will at the for being ground. In some cases we cause the levers before mentioned to act directly on the flat without the intervention of the sliding pieces before referred to.

We provide arrangements by means of which the apparatus can be put out of operation without being removed from the carding engine.

A means of carrying our invention into efiect is shown in the accompanying drawin gs which show so much of acarding-engine as 1s requisite to illustrate our invention.

Figure 1 is a side elevation. Fig. 2 is a plan of certain parts seen in the direction from A to Hot Fig. 1. Fig. 3 is a side elevation of certain of the parts shown in Fig. 1 as seen in the direction from O to D of Fig. 1. Fig. at is aside elevation of arrangements employed to insure the disengagement of the flats from the sliding blocks I it after such flats have passed beneath the grinding roller. Fig. 5 is aside elevation on a larger scale of certain partsshown in Fig. 1. Fig. 6 represents a transverse section corresponding with Fig. 4, of parts of the devices for supporting the flats during the grinding. Figs. 7 and Sam respectively aside and a plan view of one of the sliding blocks, the bar to which it is attached and the devices for moving said bar.

Fig. 9represents a transverse section of said bar and an end view of the sliding block.

The same letters of reference are applied to corresponding parts throughout all the In the accompanying drawings we have shown, and in many cases in the description following we shall refer to, certain parts as though such parts were employed atone side only of the carding engine but we would have it understood that certain of the parts extend across the oarding engine and that parts corresponding to certain other parts are employed at the other side of the carding engine.

To the bend a is secured a bracket bwhich supports so that it is free to be rotated therein one end of the notch block shaft 0 upon which are mounted the notch blocks d from which the chain E of flats e receives its motion and by which the flats e are moved over the surface of the guide rails or flexible bends fof the revolving fiat carding engine.

Secured upon one end of the notch block shaft 0 is a cam 9 upon the circumference of which are formed inclines g the number of inclines g being equal to the number of notches or recesses d in each of the fnotch blocks d. The inclines g act upon an incline h secured to a bar 77 Through the end 7&2 of the bar h is formed a slot 71 which embraces a stud j projecting from the end of the notch block shaft 0 upon which stud j the sloth may be slid. The bar It is jointed at its end h by means of a stud It to one end of a lever t mounted fast upon a shaft Z carried by and capable of being turned in brackets m secured to or mounted upon the bends a of the carding engine. One end of the lever 15 is formed as a handle 25'.

Fast upon the shaft l are arms at the ends at of which at times act against the lower sides of levers 0 which are mounted loose upon the shaft 1.

Secured to each of the levers 0 is one end of a rod 19 the opposite end of which is secured to the lever 0 corresponding to the said lever 0 and situate at the other side of the carding engine. The rod 13 acts as a weight tending to turn the levers 0 in the direction opposite to that indicated by the arrow H.

Formed upon or secured to the lever 0 is a finger (1 upon which rests the lower end of the sliding block 0" capable of being slid in guides 1" formed in a part T2 projecting from the bracket 912 secured to the bend a. When the flats e are at Work they travel in the direction indicated by the arrow F. \Vhile each of the flats e is traveling over the sliding blocks 0' the part c of such flat 6 will rest upon the end r of the sliding block 0'.

Carried by the bracket m is the grinding roller s.

]t is a sliding block secured upon a bar It capable of being slid longitudinally in the bracket m. Carried by the bracket on is one end of a shaft 'Lb upon which is secured a boss it. To the circumference of the boss to is secured one end of a chain 12 secured at its other end to the bar 76. To the shaft u is secured a weight w which tends to turn the shaft u so as to draw the bar It and the block in the direction indicated by the arrow G. The cam g with its inclines 9' will at the proper time by means of the incline h, bar h, and lever 25 permit the rod 19 and lever 0 to act on the arms 02 and allow the weight of the rod 19 to turn the fingers q and by means of the sliding blocks 1' cause the flat e which is to be ground to be brought into contact with the sliding blocks 70 aforesaid so that the relative positions of the wire on the flat and the surface of the grinding roller while the wire of the flat is being ground will be regulated by the sliding blocks 70.

According to the position in which the parts are shown in the drawings the leading flat (2* is shown as having just passed underneath the grinding roller. When the said flat e is in the said position one of the inclines g of the cam Q will by acting against the incline h push forward the bar it thereby turning the lifting levers n and causing them to act upon the levers 0 so as to turn them in the direction indicated by the arrow H thereby causing the fingers q to be turned in the direction indicated by the arrow J and thereby allowing the sliding blocks 4" to descend and the flat supported by such sliding blocks 7" to be disengaged from the sliding blocks 70 so that the said flat will be disengaged from the sliding blocks k before mentioned in order that the sliding blocks 70 may be returned to their normal position, by means ofthe weight w in readiness to receive the next fiat as it moves forwardinto position forbeing ground.

Occasionally when the joints of the flat chains are rather stilf the flat which is being lifted up to engage with the sliding block 7i; lifts also the preceding flat which has already passed from the sliding block 70. In order to prevent such lifting of the flat after it has passed from the sliding block it we in some cases form upon or secure to the bracketm a projecting part c under which each fiat has to pass after being ground by the grinding roller 3 and we thus cause each flat after being ground to be held down so that it will travel along the bracket e 'by which the flats which are not being ground are supported.

Although the weight of the flat on the descent of the sliding blocks a" is in practice found to be sutlicient to release the flat from the sliding blocks k, we in some cases employ the arrangements shown in Fig. 4 by means of which arrangements .we are enabled to positively insure the disengagementof the flat from the sliding block 7.; after such flat has passed beneath the grinding roller 3.

Upon each of thelevers 0 we secure or form a projecting part 0 which at times supports one end y of a lever y carried by and capable of being turned upon a stud .2 secured to the bracket m.

'When the flat has passed beneath the grinding roller 5 such flat will arrive beneath the ends g of thelevers y. When the levers 0 are moved in the direction indicated by the arrow J"" in order to allow the descent of the sliding blocks 4* such levers 0 will by means of the projecting parts 0 cause the levers y to be turned in the direction indicated by the arrow M and the ends 1 of the levers y will arrive in contact with the fiat and force it away from the sliding blocks 70. The cams g thus cause each of the flats to become engaged with the sliding blocks 70 and to be disengaged therefrom.

In Fig. 4 the projecting part 0' is shown as being in the form of an eccentric or cam mounted and capable of being secured in position upon a stud, in order that the action 0f the lever 'y may be readily regulated to cause the flats to be disengaged from the sliding blocks 70 when the lever 0 is moved in the direction indicated by the arrow J When the flatshave been sufficiently ground or when it is desired to put the apparatus above described out of operation we transfer the pin or from the hole in the bar h in which it is shown as being placed into another hole formed through the bar it and shown by dotted lines 00', the bar 71. being moved in the direction indicated by the arrow L by the handle 15 being moved in the direction indicated by the arrow K in Figs. land 5. The incline 71. will thus be moved out of the range of the inclines g and the fingers q being turned in the direction indicated by the arrow II will allow the sliding blocks a" to descend, thereby al lowing the flats to pass beneath the grinding roller 8 without being acted upon thereby.

It may be here mentioned that in Fig. 4 the bar It is represented as connected with the lever 25 below the shaft Z instead of above the said shaft as shown in Figs. 1 and 5. This is immaterial but the connection shown in Fig. 4 will require the handle of the lever to be moved in a direction the reverse of that shown in Figs.1 and 5 to obtain the same movement of the bar h.

Having fully described our invention, what we claim, and desire to secure by Letters Patent, is-- 1. In an apparatus for grinding the flats of revolving fiat carding engines in which sliding blocks such as (70) are employed the com bination with such sliding blocks, of the cam g, bar h, lever t, shaft Z, levers 0, arms 11, fingers q and sliding blocks 4" all constructed arranged employed and operatingsubstantially as here: inbefore described for causing the flats which are to be ground to be successively raised into and kept in contact and allowed to pass out of contact with the said sliding blocks (is).

2. In an apparatus for grinding the flats of revolving flat carding engines in which sliding blocks such as (k) are employed the combination of parts consisting in the cam g,-bar h, lever 25, shaft Z, levers 0 provided with parts 0, arms n, fingers q, sliding blocks 1' and levers y all constructed, arranged, employed and operating substantially as hereinbefore described for causing the flats which are to be ground to be successively raised into and kept in contact with and disengaged from the sliding blocks (k).

3. In an apparatus for grinding the flats of carding engines in which sliding blocks such as (Z0) are employed, lovers 1 arranged to act in conjunction with projections 0' upon the levers 0 substantially as herein described and for the purpose of disengaging the flats from the sliding blocks (la) after such flats have been ground.

4. In an apparatus for grinding the flats of revolving flat carding engines in which sliding blocks such as are employed the combination with such sliding blocks, of a cam g employed and operating substantially as hereinloefore described and for the purpose of bringing the flat which is to be ground into position and connection with the said sliding blocks and for removing the said flat from the said blocks after it has been ground.

JAMES EDWARD PLA'IT. JAMES FIDLER. Witnesses:

SAMUEL INGHAM,

325 Park Road, OZdham. CHARLES Amswon'rn,

12 Trinity Sweet, Oldham. 

